diff options
Diffstat (limited to 'SRC/clanhb.f')
| -rw-r--r-- | SRC/clanhb.f | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/SRC/clanhb.f b/SRC/clanhb.f index a0a70cc3..b879dcc9 100644 --- a/SRC/clanhb.f +++ b/SRC/clanhb.f @@ -157,8 +157,8 @@ REAL ABSA, SCALE, SUM, VALUE * .. * .. External Functions .. - LOGICAL LSAME - EXTERNAL LSAME + LOGICAL LSAME, SISNAN + EXTERNAL LSAME, SISNAN * .. * .. External Subroutines .. EXTERNAL CLASSQ @@ -178,15 +178,19 @@ IF( LSAME( UPLO, 'U' ) ) THEN DO 20 J = 1, N DO 10 I = MAX( K+2-J, 1 ), K - VALUE = MAX( VALUE, ABS( AB( I, J ) ) ) + SUM = ABS( AB( I, J ) ) + IF( VALUE .LT. SUM .OR. SISNAN( SUM ) ) VALUE = SUM 10 CONTINUE - VALUE = MAX( VALUE, ABS( REAL( AB( K+1, J ) ) ) ) + SUM = ABS( REAL( AB( K+1, J ) ) ) + IF( VALUE .LT. SUM .OR. SISNAN( SUM ) ) VALUE = SUM 20 CONTINUE ELSE DO 40 J = 1, N - VALUE = MAX( VALUE, ABS( REAL( AB( 1, J ) ) ) ) + SUM = ABS( REAL( AB( 1, J ) ) ) + IF( VALUE .LT. SUM .OR. SISNAN( SUM ) ) VALUE = SUM DO 30 I = 2, MIN( N+1-J, K+1 ) - VALUE = MAX( VALUE, ABS( AB( I, J ) ) ) + SUM = ABS( AB( I, J ) ) + IF( VALUE .LT. SUM .OR. SISNAN( SUM ) ) VALUE = SUM 30 CONTINUE 40 CONTINUE END IF @@ -208,7 +212,8 @@ WORK( J ) = SUM + ABS( REAL( AB( K+1, J ) ) ) 60 CONTINUE DO 70 I = 1, N - VALUE = MAX( VALUE, WORK( I ) ) + SUM = WORK( I ) + IF( VALUE .LT. SUM .OR. SISNAN( SUM ) ) VALUE = SUM 70 CONTINUE ELSE DO 80 I = 1, N @@ -222,7 +227,7 @@ SUM = SUM + ABSA WORK( I ) = WORK( I ) + ABSA 90 CONTINUE - VALUE = MAX( VALUE, SUM ) + IF( VALUE .LT. SUM .OR. SISNAN( SUM ) ) VALUE = SUM 100 CONTINUE END IF ELSE IF( ( LSAME( NORM, 'F' ) ) .OR. ( LSAME( NORM, 'E' ) ) ) THEN |